<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .kt{
            width: 1000px;
            height: 55px;
            float: left;
            text-align: center;
            margin: 20px 150px;
        }
        .kt li{
            width: 200px;
            list-style: none;
            line-height: 55px;
            float: left;
            background-color: rgb(132, 8, 248);
            color: white;
        }
        .xs{
            width: 300px;
            text-align: center;
            display: none;
        }
        .kt li:hover{
            background-color: pink;
            color: deepskyblue;
            
        }
        .kt li:hover .xs{
            display: block;
        }
    </style>
</head>
<body>
    <ul class="kt">
        <li>大飞哥出生
            <ul class="xs">
                <li>大飞哥爱跳舞</li>
                <li>毛线没什么</li>
                <li>低三下四</li>
                <li>撒啊是西餐</li>
                <li>顶顶顶顶</li>
            </ul>
        </li>
        <li>大飞哥
            <ul class="xs">
                <li>大飞哥爱曹俊龙</li>
                <li>曹俊龙爱吃米饭</li>
                <li>马佳奇像孙君</li>
                <li>我是奥特曼</li>
                <li>八嘎呀路</li>
            </ul>
        </li>
        <li>重生记
            <ul class="xs">
                <li>如果能重来</li>
                <li>我不在写</li>
                <li>前端好难</li>
                <li>掉头发</li>
                <li>伤身体</li>
            </ul>
        </li>
    </ul>
</body>
</html>